/*-----------------------------------------------------------------------/
/  Low level disk interface modlue include file   (C)ChaN, 2013          /
/-----------------------------------------------------------------------*/

#ifndef _DISKIO_DEFINED
#define _DISKIO_DEFINED

#ifdef __cplusplus
extern "C" {
#endif

/* Status of Disk Functions */
typedef BYTE DSTATUS;

/* Results of Disk Functions */
typedef enum {
    RES_OK = 0,     /* 0: Successful */
    RES_ERROR,      /* 1: R/W Error */
    RES_WRPRT,      /* 2: Write Protected */
    RES_NOTRDY,     /* 3: Not Ready */
    RES_PARERR      /* 4: Invalid Parameter */
} DRESULT;

/* FATFS related */
DSTATUS disk_initialize(BYTE pdrv);
DSTATUS disk_status(BYTE pdrv);
DRESULT disk_read(BYTE pdrv, BYTE* buff, DWORD sector, UINT count);
DRESULT disk_write(BYTE pdrv, const BYTE* buff, DWORD sector, UINT count);
DRESULT disk_ioctl(BYTE pdrv, BYTE cmd, void* buff);

/* Disk Status Bits (DSTATUS) */
#define STA_NOINIT      0x01    /* Drive not initialized */
#define STA_NODISK      0x02    /* No medium in the drive */
#define STA_PROTECT     0x04    /* Write protected */


/* Command code for disk_ioctrl function */
/* Generic command (used by FatFs) */
#define CTRL_SYNC           0   /* Flush disk cache (for write functions) */
#define GET_SECTOR_COUNT    1   /* Get media size (for only f_mkfs()) */
#define GET_SECTOR_SIZE     2   /* Get sector size (for multiple sector size (_MAX_SS >= 1024)) */
#define GET_BLOCK_SIZE      3   /* Get erase block size (for only f_mkfs()) */
#define CTRL_ERASE_SECTOR   4   /* Force erased a block of sectors (for only _USE_ERASE) */


/* Generic command (not used by FatFs) */
#define CTRL_POWER          5   /* Get/Set power status */
#define CTRL_LOCK           6   /* Lock/Unlock media removal */
#define CTRL_EJECT          7   /* Eject media */
#define CTRL_FORMAT         8   /* Create physical format on the media */


/* MMC/SDC specific ioctl command */
#define MMC_GET_TYPE        10  /* Get card type */
#define MMC_GET_CSD         11  /* Get CSD */
#define MMC_GET_CID         12  /* Get CID */
#define MMC_GET_OCR         13  /* Get OCR */
#define MMC_GET_SDSTAT      14  /* Get SD status */


/* ATA/CF specific ioctl command */
#define ATA_GET_REV         20  /* Get F/W revision */
#define ATA_GET_MODEL       21  /* Get model name */
#define ATA_GET_SN          22  /* Get serial number */


/* MMC card type flags (MMC_GET_TYPE) */
#define CT_MMC              0x01    /* MMC ver 3 */
#define CT_SD1              0x02    /* SD ver 1 */
#define CT_SD2              0x04    /* SD ver 2 */
#define CT_SDC    (CT_SD1|CT_SD2)   /* SD */
#define CT_BLOCK            0x08    /* Block addressing */

#ifdef __cplusplus
}
#endif
#endif
